US6345230B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle navigation system and method
Assignee: Aisin AW Co Ltd
•
Filing: 1999-04-20
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Granted: 2002-02-05
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Expires: 2019-04-20
Abstract
Abstract A vehicle navigation system is presented for performing guidance along route which produces an intersection image upon controlling a drawing area of the intersection image on the basis of information and route regarding the intersection existing on the route which requires guidance. The navigation system display control unit determines the drawing area of the intersection image on the basis of map information stored in a memory, route information stored in a route memory and information concerning an intersection requiring route information and guidance prior to producing the intersection image. In addition, the display control unit judges whether the intersection which requires route guidance is larger than the predetermined limited scale rate, and if the intersection which requires guidance is larger than the predetermined image limit, the display control unit controls a display area by reducing the scale rate so as to be able to display the entire intersection or otherwise controls the display area so as to be able to display all routes within its intersection.
Inventors
- 👤 Toyoji Hiyokawa
- 👤 Junzo Matsuba
- 👤 Naokazu Ozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:23
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/26; G01C21/34; G01C21/36; G01C21/3626; G01C21/3632; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0968; G08G1/0969; G09; G09B; G09B29/00; G09B29/10; G09B29/106
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
121 words
A vehicle navigation system, comprising: a map information memory that stores map information including information regarding roads, rotary intersections or junctions; a route search unit that calculates a route on the basis of the map information of the memory; a route memory that stores route information calculated by the route search unit; and a display control unit that produces an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information, wherein the display control unit calculates coordinates at an entrance and an exit of the rotary or the junction and calculates a scale capable of accommodating two calculated coordinates and produces the intersection image at the calculated scale.
Claim 2
Dependent Claim
121 words
A vehicle navigation system, comprising: a map information memory that stores map information including information regarding roads, rotary intersections or junctions; a route search unit that calculates a route on the basis of the map information of the memory; a route memory that stores route information calculated by the route search unit; and a display control unit that produces an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information, wherein the display control unit calculates coordinates at an entrance and an exit of the rotary or the junction and calculates a scale capable of accommodating two calculated coordinates and produces the intersection image at the calculated scale.
Claim 3
Dependent Claim
44 words
A vehicle navigation system according to claim 1 , wherein the display control unit judges whether the calculated scale is wider than the normal scale and produces the intersection image at the calculated scale if the calculated scale is wider than the normal scale.
Claim 4
Dependent Claim
99 words
A vehicle navigation system, comprising: means for storing map information including information regarding roads, rotary intersections or junctions; means for calculating a route on the basis of the map information; means for storing calculated route information; and means for producing an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information by calculating coordinates at an entrance and an exit of the rotary or the junction and calculating a scale capable of accommodating two calculated coordinates, wherein the intersection image at the calculated scale is produced.
Claim 5
Dependent Claim
99 words
A vehicle navigation system, comprising: means for storing map information including information regarding roads, rotary intersections or junctions; means for calculating a route on the basis of the map information; means for storing calculated route information; and means for producing an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information by calculating coordinates at an entrance and an exit of the rotary or the junction and calculating a scale capable of accommodating two calculated coordinates, wherein the intersection image at the calculated scale is produced.
Claim 6
Dependent Claim
118 words
A vehicle navigation system, comprising: a program for storing map information including information regarding roads, rotary intersections or junctions in a map information memory; a program for calculating a route on the basis of map information in a route search unit; a program for storing the calculated route information in a route memory; a program for producing an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information; and a program for calculating coordinates at an entrance and an exit of the rotary or the junction and calculating a scale capable of accommodating two calculated coordinates and producing the intersection image at the calculated scale.
Claim 7
Dependent Claim
118 words
A vehicle navigation system, comprising: a program for storing map information including information regarding roads, rotary intersections or junctions in a map information memory; a program for calculating a route on the basis of map information in a route search unit; a program for storing the calculated route information in a route memory; a program for producing an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information; and a program for calculating coordinates at an entrance and an exit of the rotary or the junction and calculating a scale capable of accommodating two calculated coordinates and producing the intersection image at the calculated scale.
Claim 8
Dependent Claim
122 words
A vehicle navigation system, comprising: a map information memory that stores map information including information regarding roads and rotary intersections; a route search unit that calculates a route on the basis of the map information of the memory; a route memory that stores route information calculated by the route search unit; and a display control unit that produces an intersection image that displays the rotary intersection requiring guidance on the basis of the map information and the route information, wherein the display control unit calculates a route distance from an entrance road to an exit road within the rotary, calculates a scale of the intersection image on the basis of the route distance and produces the intersection image at the calculated scale.
Claim 9
Dependent Claim
122 words
A vehicle navigation system, comprising: a map information memory that stores map information including information regarding roads and rotary intersections; a route search unit that calculates a route on the basis of the map information of the memory; a route memory that stores route information calculated by the route search unit; and a display control unit that produces an intersection image that displays the rotary intersection requiring guidance on the basis of the map information and the route information, wherein the display control unit calculates a route distance from an entrance road to an exit road within the rotary, calculates a scale of the intersection image on the basis of the route distance and produces the intersection image at the calculated scale.
Claim 10
Dependent Claim
123 words
A vehicle navigation system, comprising: a map information memory that stores map information including information regarding roads, rotary intersections or junctions; a route search unit that calculates a route on the basis of the map information of the memory; a route memory that stores route information calculated by the route search unit; and a display control unit that produces an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information, wherein the display control unit calculates minimum and maximum values of shape coordinates at the rotary or the junction, calculates a scale capable of accommodating the calculated minimum and maximum values and produces the intersection image at the calculated scale.
Claim 11
Dependent Claim
123 words
A vehicle navigation system, comprising: a map information memory that stores map information including information regarding roads, rotary intersections or junctions; a route search unit that calculates a route on the basis of the map information of the memory; a route memory that stores route information calculated by the route search unit; and a display control unit that produces an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information, wherein the display control unit calculates minimum and maximum values of shape coordinates at the rotary or the junction, calculates a scale capable of accommodating the calculated minimum and maximum values and produces the intersection image at the calculated scale.
Claim 12
Dependent Claim
44 words
A vehicle navigation system according to claim 6 , wherein the display control unit judges whether the calculated scale is wider than the normal scale and produces the intersection image at the calculated scale if the calculated scale is wider than the normal scale.
Claim 13
Independent Claim
90 words
A method for a vehicle navigation, comprising: storing map information including information regarding roads and rotary intersections; calculating a route on the basis of the stored map information; storing the calculated route information; calculating a route distance from an entrance road to an exit road within the rotary and calculating a scale of an intersection image on the basis of the route distance; and producing the intersection image at the calculated scale that displays the rotary intersection requiring guidance on the basis of the map information and the route information.
Claim 14
Independent Claim
90 words
A method for a vehicle navigation, comprising: storing map information including information regarding roads and rotary intersections; calculating a route on the basis of the stored map information; storing the calculated route information; calculating a route distance from an entrance road to an exit road within the rotary and calculating a scale of an intersection image on the basis of the route distance; and producing the intersection image at the calculated scale that displays the rotary intersection requiring guidance on the basis of the map information and the route information.
Claim 15
Dependent Claim
119 words
A vehicle navigation system, comprising: a program for storing map information including information regarding roads and rotary intersections in a map information memory; a program for calculating a route on the basis of map information in a route search unit; a program for storing the calculated route information in a route memory; a program for producing an intersection image that displays the rotary intersection requiring guidance on the basis of the map information and the route information; and a program for calculating a route distance from an entrance road to an exit road within the rotary, calculating a scale of the intersection image on the basis of the route distance and producing the intersection image at the calculated scale.
Claim 16
Dependent Claim
119 words
A vehicle navigation system, comprising: a program for storing map information including information regarding roads and rotary intersections in a map information memory; a program for calculating a route on the basis of map information in a route search unit; a program for storing the calculated route information in a route memory; a program for producing an intersection image that displays the rotary intersection requiring guidance on the basis of the map information and the route information; and a program for calculating a route distance from an entrance road to an exit road within the rotary, calculating a scale of the intersection image on the basis of the route distance and producing the intersection image at the calculated scale.
Claim 17
Independent Claim
90 words
A method for vehicle navigation, comprising: storing map information including information regarding roads, rotary intersections or junctions; calculating a route on the basis of the stored map information; storing the calculated route information; calculating minimum and maximum values of shape coordinates at a rotary or the junction and calculating a scale capable of accommodating the calculated minimum and maximum values; and producing an intersection image at the calculated scale that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information.
Claim 18
Independent Claim
90 words
A method for vehicle navigation, comprising: storing map information including information regarding roads, rotary intersections or junctions; calculating a route on the basis of the stored map information; storing the calculated route information; calculating minimum and maximum values of shape coordinates at a rotary or the junction and calculating a scale capable of accommodating the calculated minimum and maximum values; and producing an intersection image at the calculated scale that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information.
Claim 19
Dependent Claim
122 words
A vehicle navigation system, comprising: a program for storing map information including information regarding roads, rotary intersections or junctions in a map information memory; a program for calculating a route on the basis of map information in a route search unit; a program for storing the calculated route information in a route memory; a program for producing an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information; and a program for calculating minimum and the maximum values of shape coordinates at the rotary or the junction, calculating a scale capable of accommodating and calculating the minimum and maximum values and producing the intersection image at the calculated scale.
Claim 20
Dependent Claim
122 words
A vehicle navigation system, comprising: a program for storing map information including information regarding roads, rotary intersections or junctions in a map information memory; a program for calculating a route on the basis of map information in a route search unit; a program for storing the calculated route information in a route memory; a program for producing an intersection image that displays the rotary intersection or the junction requiring guidance on the basis of the map information and the route information; and a program for calculating minimum and the maximum values of shape coordinates at the rotary or the junction, calculating a scale capable of accommodating and calculating the minimum and maximum values and producing the intersection image at the calculated scale.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-02-04 | 2005-08-06 | 2006-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-02-04 | 2009-08-06 | 2010-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-02-04 | 2013-08-06 | 2014-02-05 | $7700.00 | Window Closed / Lapsed |